Campbell Biology: Concepts & Connections, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (8th Edition)
8th Edition
ISBN: 9780133909029
Author: Jane B. Reece, Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan
Publisher: PEARSON
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Textbook Question
Chapter 36, Problem 2CC
The graph below shows the demographic transition for a hypothetical country. Many developed countries that have achieved a stable
a. What does the blue line represent? The red line?
b. This diagram has been divided into four sections. Describe what is happening in each section.
c. In which section(s) is the population size stable?
d. In which section is the
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B. Growth and immigration rate is greater than death and emigration rate.
C. Growth and immigration rate is less than death and emigration rate.
D. Growth rate is exponential.
Answer
Why do you believe this is the correct
answer.
The curve below shows the growth rate of a population that
has a per capita growth rate of 0.4. Which of the following is
true about this curve. More than one is possible.
exponential growth
2500000
2000000
1500000
1000000
500000
0
5
10
15
20
25
Select one or more:
Ua. r becomes greater as the population grows because there are more births per year.
b. There are more births per generation as you move right on the graph
c. exponential growth is most often observed in stable populations that have resided in
an environment for a long time.
Od. The slope of the curve changes continuously as you move to the right even though r
remains the same.
Chapter 36 Solutions
Campbell Biology: Concepts & Connections, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (8th Edition)
Ch. 36 - Use this graph of the idealized exponential and...Ch. 36 - The graph below shows the demographic transition...Ch. 36 - Prob. 3TYKCh. 36 - To figure out the human population density of your...Ch. 36 - The term (K N)/K a. is the carrying capacity for...Ch. 36 - With regard to its rate of growth, a population...Ch. 36 - Prob. 7TYKCh. 36 - Skyrocketing growth of the human population...Ch. 36 - Prob. 9TYKCh. 36 - What are some factors that might have a...
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- A population that grew in close relation to the amount of resources available in the environment, would experience A. exponential growth, such as shown on the J-shaped curve B. logistic growth, such as shown on the S-shaped curve C. unpredictable growth, such as shown on the ?-shaped curve D.logistic growth, such as shown on the J-shaped curve E. exponential growth, such as shown on the S-shaped curvearrow_forwardWhen discussing population size, we are referring to a. the total number of individuals in a population. b. the size of the geographic region in which a population is found. c. the number of individuals in a population divided by the area of the region covered by the population. d. the number of individuals in a population multiplied by the area of the region covered by the population. e. the specific type of environment in which a population can exist.arrow_forwardThe per capita birth (b) and death (d) rates are measured for two populations across a range of population sizes in the attached figure. The equation for exponential growth rate is dN/dt=rN where the per capita growth rate is r=(b-d). The equation for logistic population growth rate is dN/dt=rN(1-N/K). With logistic growth, r varies as a function of the population size with density-dependent birth and/or death rates. See attached image If the death rate decreased, what would happen to the population trajectory for population A? a) increase faster b) increase slower c) decrease faster d) decrease slowerarrow_forward
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- How does the logistic growth model of population growth differ from the exponential growth model? A. The graph of the exponential model is S-shaped. B. The logistic growth model shows an unrestricted growth rate. C. The logistic growth model considers the environment's carrying capacity. D. The exponential growth model shows a restricted growth rate.arrow_forwardThe growth of a population of rare South American beetles is given by the logistic function with k = 0.00001 and t in months. Assume that there are 200 beetles initially and that the maximum population size is 10,000. a. Find the growth function G1t2 for these beetles. Find the population and rate of growth of the population after the following times. b. 6 months c. 3 years d. 7 years e. What happens to the rate of growth over time?arrow_forwardBased on the demographic transition model, which of the following countries is in the industrialization stage, marked by birth rate declines and less rapid population growth compared to the previous period? O a. Mexico O b. Canada O c. Germany O d. Japan O e. Indiaarrow_forward
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